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電磁閥

判斷電磁閥好壞的方法

發布日期:2022-10-09 點擊率:180

  判斷電磁閥的好壞一般不使用量阻值方法,因為我們一般不知道那個電磁閥的確切阻值!判斷電磁閥好壞的方法比較多,下面我介紹幾種常用且實用的方法!

  1、觀察法:

  電磁閥一般會出現引出線脫落 ,短路故障,還有線圈燒壞,這些我們直接可用眼睛觀察止來,

  2、測磁法:

  就是根據電磁閥通電會產生磁場的原理,通電時用螺絲刀(鐵質)靠近一頭,感覺象磁鐵ㄧ樣吸引螺絲刀的,說明電磁閥好的,

  3、測量法:

  用量電磁閥的通斷,通的且有ㄧ定阻值為好的,斷的或阻值為零的初步可認為是壞的,實在不好判的再通電,不短路且有磁場的是好的!


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